<?php
/**
 * Info report for PHP_CodeSniffer.
 *
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
 */

namespace PHP_CodeSniffer\Reports;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Util\Timing;

class Info implements Report
{
    /**
     * Generate a partial report for a single processed file.
     *
     * Function should return TRUE if it printed or stored data about the file
     * and FALSE if it ignored the file. Returning TRUE indicates that the file and
     * its data should be counted in the grand totals.
     *
     * @param array                 $report      Prepared report data.
     * @param \PHP_CodeSniffer\File $phpcsFile   The file being reported on.
     * @param bool                  $showSources Show sources?
     * @param int                   $width       Maximum allowed line width.
     *
     * @return bool
     */
    public function generateFileReport($report, File $phpcsFile, $showSources = false, $width = 80)
    {
        $metrics = $phpcsFile->getMetrics();
        foreach ($metrics as $metric => $data) {
            foreach ($data['values'] as $value => $count) {
                echo "{$metric}>>{$value}>>{$count}" . PHP_EOL;
            }
        }

        return true;
    }

    //end generateFileReport()

    /**
     * Prints the source of all errors and warnings.
     *
     * @param string $cachedData    Any partial report data that was returned from
     *                              generateFileReport during the run.
     * @param int    $totalFiles    Total number of files processed during the run.
     * @param int    $totalErrors   Total number of errors found during the run.
     * @param int    $totalWarnings Total number of warnings found during the run.
     * @param int    $totalFixable  Total number of problems that can be fixed.
     * @param bool   $showSources   Show sources?
     * @param int    $width         Maximum allowed line width.
     * @param bool   $interactive   Are we running in interactive mode?
     * @param bool   $toScreen      Is the report being printed to screen?
     */
    public function generate(
        $cachedData,
        $totalFiles,
        $totalErrors,
        $totalWarnings,
        $totalFixable,
        $showSources = false,
        $width = 80,
        $interactive = false,
        $toScreen = true
    ) {
        $lines = explode(PHP_EOL, $cachedData);
        array_pop($lines);

        if (true === empty($lines)) {
            return;
        }

        $metrics = [];
        foreach ($lines as $line) {
            $parts = explode('>>', $line);
            $metric = $parts[0];
            $value = $parts[1];
            $count = $parts[2];
            if (false === isset($metrics[$metric])) {
                $metrics[$metric] = [];
            }

            if (false === isset($metrics[$metric][$value])) {
                $metrics[$metric][$value] = $count;
            } else {
                $metrics[$metric][$value] += $count;
            }
        }

        ksort($metrics);

        echo PHP_EOL . "\033[1m" . 'PHP CODE SNIFFER INFORMATION REPORT' . "\033[0m" . PHP_EOL;
        echo str_repeat('-', 70) . PHP_EOL;

        foreach ($metrics as $metric => $values) {
            if (1 === \count($values)) {
                $count = reset($values);
                $value = key($values);

                echo "{$metric}: \033[4m{$value}\033[0m [{$count}/{$count}, 100%]" . PHP_EOL;
            } else {
                $totalCount = 0;
                $valueWidth = 0;
                foreach ($values as $value => $count) {
                    $totalCount += $count;
                    $valueWidth = max($valueWidth, \strlen($value));
                }

                // Length of the total string, plus however many
                // thousands separators there are.
                $countWidth = \strlen($totalCount);
                $thousandSeparatorCount = floor($countWidth / 3);
                $countWidth += $thousandSeparatorCount;

                // Account for 'total' line.
                $valueWidth = max(5, $valueWidth);

                echo "{$metric}:" . PHP_EOL;

                ksort($values, SORT_NATURAL);
                arsort($values);

                $percentPrefixWidth = 0;
                $percentWidth = 6;
                foreach ($values as $value => $count) {
                    $percent = round(($count / $totalCount * 100), 2);
                    $percentPrefix = '';
                    if (0.00 === $percent) {
                        $percent = 0.01;
                        $percentPrefix = '<';
                        $percentPrefixWidth = 2;
                        $percentWidth = 4;
                    }

                    printf(
                        "\t%-{$valueWidth}s => %{$countWidth}s (%{$percentPrefixWidth}s%{$percentWidth}.2f%%)" . PHP_EOL,
                        $value,
                        number_format($count),
                        $percentPrefix,
                        $percent
                    );
                }

                echo "\t" . str_repeat('-', ($valueWidth + $countWidth + 15)) . PHP_EOL;
                printf(
                    "\t%-{$valueWidth}s => %{$countWidth}s (100.00%%)" . PHP_EOL,
                    'total',
                    number_format($totalCount)
                );
            }//end if

            echo PHP_EOL;
        }//end foreach

        echo str_repeat('-', 70) . PHP_EOL;

        if (true === $toScreen && false === $interactive) {
            Timing::printRunTime();
        }
    }

    //end generate()
}//end class
